Machine for operating upon fastenings.



J. GAVANAGH, JE- MAGHINE FOR OPERATING UPON PASTENINGS. APPLICATION FILED 0GT.23, 1908.

1,109,662, Patented Sept. 8, 1914.

2 SHEETS-SHEET 1.

W/T/ViSSES.

NORRIS PETERS CQ. PHOTO-LITHO. WASHING TON. D C.

56M MM @Qkzf G. 62 a 1 2 1 J. GAVANAGH, Jn. MAOKINE FOR OPERATING UPON FASTENINGS.

APPLICATION FILED 00'1123, 1908.

Patented Sept. 8, 1914.

2 SHEETS-SHEET 2.

Wvgvma WT/VESSESL em a W THE NORRIS PETERS 50., PHOTO-LITHO.. WASHINGTON, D. C.

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mrnn sra'r ls PATENT our-ion.

JAMES CAVANAG-I-I, 53., or BosToN, ,nAssAoHusn'rTs; AssreNoR TO UNITED siron MACHINERY COMPANY, or rarnnson, NEW, JEESEY, -A CORPORATION OF-NEW JERSEY.

Boston, inthecountyof Suffolk and Commonwealth of Massachusetts, have invented certain Improvements in, Mach nes for Operating upon Fasten ngs, of which the following description, in co'lji nection with the accompanying drawings, is a" specifica: tion, like reference characters on the drawings indicating like parts inthe several fig mesqr F The invention herein set forth relates to machines for reclaiming fastenings. I

In particular, the, invention relates to machine for reclaiming fastenings which have become distortedv in shape, either in manufacture or in use; I

The invention i illustrated herein ijs embodied in a machine for reclaiming tacks, especially tacks of the type used in lasting boots and "shoes,

U v t In the manufacture of boots and shoes, and particularly in the manufacture of the better grades oflboots and shoes, the, upper is drawn over a lastiand secured thereon by tacks-some of which are dr ven through the upper and insole and clenched uponthe inside of the insole to form a portion of the permanent fastenings and others of which are left with theirheaClS projecting whereby they may be readily removed to permit the succeeding operations upon the shoe to be performed, more coiweniently. These tacks which are removed are usually I thrown'away although many of them are vin condition to be used again, and othersof them are onlyslightly bent or distorted.

Applicationfiled 0ctober23,1908. S n galese.

The number of tacks thus wasted constitutes I a very considerable item inithe [cost of manufacture ofboots and ShQG and anjobject of the present invention is to providefmeansfor reclaiming snohtacks andthus reducing the waste to a minimum. To thisfend the pi'esent invention comprises novel means for straightening tacks? o1- =other vfasteni ngs which have become distorted, either in Hienufactu fe or in use, preferably in combination with means for automatically deliver-I ing the tacks or other fastenings to be straightened to the straightening means.

Preferably the invention comprises also means for separating'from thestralght and straightened tacks w h icl1 comefrom said 4 than the diameter of the shanks ofjthetacks to b straight n d is a stationary lii'ng mounted upon, or in egralwi h e frame 2.

MACHINE on OPERATING UPONFASTENINGS;

s ecification of Letters-Patent. 1 f Patented Sept. 8,

straightening means those tacks orlother fastenings, which-are imperfect in other respects for example" those which are broken. An mportant feature of .the invention is a novel raceway which is so constructed that it is especially useful in a machine of this kind. 1 7

In the operation of the machine constituting the preferred embodiment of this invention there is employed a novel method i ofs traightening tacks which constitutes an espec ally important feature of the invention. c According to this method the tacks,

both the'perfect vand the imperfect ones, are delivered to a straightening means which is arranged to roll them between opposed surfaces whereby the shapes of those tacks which areperfect are not ',al-

tered, butithe shapes of those whichiare bentor otherwise distorted are changed and brought intov conformity with the shapes :of-the perfecttaoks," v y t i As. hereinabovesuggested the invention comprises preferably the combination with tack straightening means of tack assortingmeans whereby the imperfect tacks are separated from" the perfect tacks, and in, the llustrated preferredembodiment of the in vention thesaid as'sorting means is preferably formed as'a part of thestraightening means, I r p I M1 companying drawings, Figure 1 192331616 E vation partly in section of a machine embodying the invention of this gulp i ati ,Fig. 2 is a plan view of the 1 machineillustrated in Fig. l; Fig. 3 is' a Ede tail section through the raceway; and Fig. ft} detail section through the tack straightening 'mechanism showing also the v c spe ling through discharged which the imperfect tacks Mounted in bearingszin the of the lnachme 1s a main drlvingTshaft 4c carrying one'end a driving pulley Qwhich may 7; beconne'cted to 'any'sult'ablesource of power,

said shaft beinggeared at its other end 'by' beveled gears 8 and 10to. a vertical shaft,

12 upon which is "mounted a, horizontally rotating disk lat. Ext din part; Way

spaced therefrom a distance slightly greater "around the periphery of the diskljlt and diameter of the shanks of the tacks.

A cap plate 17 attached to the ring 16 extends over the space between said ring and the disk 14.

The mass of tacks to be operated upon by the machine, which will comprise usually perfect, bent, and broken tacks mixed to gether, is placed in a rotating hopper 18 which is attached to a shaft QOhaVingat its outer end a pulley 22 connectedby a belt 2% to a second pulley 26 upon the main shaft.

4 whereby the hopper is constantly rotated when the machine is in operation.

The hopper 18 is open at its-front and adjacent to the said opening is a stationary inclined tack receptacle 27 into which .the mass of tacks to be operated upon is poured. Paddlesor blades 28 are provided upon the inside of the hopper by which the tacksare lifted as the hopper rotates. As each of the paddles or blades 28 comes into position over a V-shaped shelf or guide 30 the tacks are discharged upon said guide and by it directed into the tack-guiding slot in an inclined raceway 32 by which they are conveyed in I line to the tack straightening mechanism.

The raceway 32, as shown in Fig. 3, is preferably substantially circular in crosssection and the tack-guiding slot is of a width equal to or slightly greater than the The material of which the raceway is made is not very thick so that thebent portion of the tack may conveniently lie within the cylindrical cavity within the raceway.

The ring 16 at the point where the raceway conducts the tacks into the space between said ring and the disk 1a is preferably reduced in its vertical dimension wherei by the bent tacks may. more readilyenter. the

said space and come into the field of opera- The vertlcal dimension tion of the disk 14. of the ring 16 increases gradually from the point where the tacks enter the straightening mechanism until it exceeds the length'of the tacksto be operated upon, whereby the whole shank of each tack gradually comes between the opposed surfaces of'the ring and disk and is thus straightened'by being rolledbetween the said surfaces. The'ring' 1G is provided with an inclined discharge opening at 34; so arranged that any of the.

tacks which have their points broken off or which have been doubled upon themselves in such manner that the machine cannot straighten them'will be discharged at one part of the said ring, while the good tacks are carried around and discharged at the end 36 of the ring.

Having described my invention, what I claim as new and desire to secure by Letters'Patent of the United States is 1. Mechanism for straightening nails and similar headed fastenings comprising a rotating dlsk, a member lying in the plane of rotation of said disk, said member having a surface concentric to and adjacent to the periphery of said disk between which and said periphery the shanks of said fastenings to be straightened are rolled while suspended by the heads of the fastenings, and means for delivering fastenings in succession to said straightening mechanism.

2. A'machine of the class described, having in combination, fastening straightening means,- comprising two relatively movable members between the adjacent surfaces of which the fastenings to be straightened are rolled, and means for delivering fastenings to said straightening means, one of said surfaces being reduced in that dimension along which the shank of the fastenings to be straightened extends at the point where the fastenings are delivered to said straightening means.

3. A machine of th'e'class described, having in combination, fastening straightening mechanism, comprising relatively movable members between the adjacent surfaces of which the fastenings to be straightened are rolled, means for delivering fastenings to said straightening mechanism, one of'said relatively movable members being so constructed that the vertical dimension of its rolling surface increases from a measure; ment less than the length of the fastenings to be straightened near the point where the fastenings are delivered to said mechanism to a measurement equal'to, or greater than, the length of said fastenings at a distance from the point at which the fastenings are delivered to saidmechanism.

4. In a machine ofthe class described,

,fastening delivering means comprising an inclined, cylindrical tube slotted in its upper face, means for guiding the shanks of the fastenings into the upper end of the slot in said tube with the heads ofthe fastenings overlying the sides of the slot, and straightemng mechanism for the shanks of nails and similarfastenings operatively connected with the lower end of the slot insaid 3 tube.

5. Mechanism for straightening fastenmgs, having, 1n combination, a fastening raceway comprising an mcllned, slotted tube bent toward a horizontal plane at its lower end and so reduced at said end that the shanks of the fastenings lie outside the tube, a hopper for fastenings to be straightened and fastening straightening means arranged to act upon the shank of the fastening to be straightened first near the head of said fastening', said tube operating to convey fastenings from said hopper and feed them successivelyto said straightening means,

,6. Mechanism for straightening fastenings, having, in combination, a receptacle for fastenings, straightening means, and means for transferring successively the fastenings by gravity from said receptacle to said straightening means, said straightening means being constructed and arranged to discharge broken fastenings' before the st 'aightening operation.

7. Mechanism for straightening headed fastenings, having, in combination, a receptacle for fastenings, straightening means, consisting of oppositely disposed relatively movable surfaces, and means providing for the passage, by gravity, of successive fastenings from said receptacle to said straightening means, in such manner that the fastenings .Will be suspended by their heads and their shanks will be extended into the field 15 of operation of the straightening means.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

J AMES CAVANAGH, JR.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

